Door-hinge.



0. KEITH, G. F. LISTER 8: J. M. EDMONDSON.

DOOR HINGE.

AIPLIOATION FILED MAR. 12, 1912.

1,053,829, Patented Feb. 18, 1913.

UNITED STATES PATENT oEEioE.

CALVIN KEITH, GEORGE F. LISTER, AND JOHN M. EDMONDSON, OF MANSFIELD,OHIO.

DOOR-HINGE.

Specification of Letters Patent.

Application filed. March 12, 1912. Serial No. 683,280.

To all whom it may concern Be it known that we, CALVIN KEITH, GEORGE F.LISTER, and JOHN M. EDMOND- SON, citizens of the United States, residingat Mansfield, in the county of Richland and State of Ohio, have inventedcertain new and useful Improvements in Door-Hinges; and we do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

Our invention relates to hinges for hanging various kinds of doors andalso useful 011 blinds and screens.

It has for its object to provide an improved hinge, parts of which maybe quickly disconnected for taking down the door or blind without thenecessity of removing screws or other permanent fastening means.

Another object is toprovide a hinge which can be assembled automaticallywithout the necessity of touching any of its parts, thereby leaving bothhands free to grasp the door when hanging the same.

It is also our aim to produce a hinge of the kind described which cannotbe assembled so as to hold together except in one position when itsparts are securely locked together. This makes it impossible to hang thedoor improperly or insecurely.

Further objects will become apparent from the following description. v

The invention also consists in the features of construction andcombinations of parts hereinafter described, illustrated in theaccompanying drawings and specified in the appended claims.

In the accompanying drawings: Figure 1 is a broken front elevation of adoor and jamb showing a pair of our improved hinges attached thereto.Fig. 2 is a side view of the upper hinge, the portion of the door towhich it is secured being shown. Fig. 3 is an enlarged sectional viewthrough the upper hinge taken on the line ma2 of Fig. 2. Fig. 4 is asimilar view showing the springpressed locking pin in its loweredposition. Fig. 5 is an upper end view on an enlarged scale of the memberof the upper hinge carrying the locking pin.

Referring more particularly to Figs. 1 to 5, inclusive, of the drawings,1 designates the door and 2 the jamb to which our hinges are applied.The lower hinge comprises two brackets 3 and 4, respectively, of anydesired or preferred shape, connected by pintle 6, the bracket 3, beingattached to the j amb. The upper hinge is also composed of two brackets7 and 8, respectively, likewise made in any suitable or desirable form.The bracket 7 which is secured to the jamb, is equipped with a straightdownwardly projecting lug 9 having its lower end preferably rounded, asat 10, see Figs. 4 and 8. The bracket 8 of the upper hinge carries avertical casing 11 in which a longitudinally movable locking pin 12 isfitted. The lower end of said locking pin projects below the casing andis provided with oppositely extending lateral projections 13 whichnormally engage the transverse groove or notch 14 in the lower end ofsaid casing. The locking pin is normally held in its upper or raisedposition by a spring 15 mounted around the lower portion of said pin andabutting at its opposite ends against shoulders 16 and 17 formedrespectively on the pin and on the interior of the casing. The edges ofthe groove or notch 14 are rounded so that the opposite projections 13are adapted to ride along and down them when the locking pin is turnedby grasping said projections. The upper end of the locking pin isnormally flush with the top of the casing when said pin is in its raisedposition. A slot 18 is out in the front of the casing entering from thetop thereof and extending vertically downward a distance somewhatgreater than the length of the lug 9. The upper end of the locking pinhas an oblique groove 19 formed therein and adapted to register with theslot 18 when said pin is in its normal raised position. Diametricallyopposite said groove, there is formed in the upper end of the lockingpin a portion 20 of a socket for the lug 9, the supplemental portion 21of said socket being formed in the casing, see Figs. 3 and 5.

It will be noted that the turning of the locking pin by means of theopposite lateral projections 13 will withdraw the upper end of saidlocking pin from engagement with the lug .9, therebyleaving the. upperhinge free to be separated, the lug passing out through the slot 18 inthe casing as the door is taken down. The locking pin is retained in itslowered position by the projections 13 engaging the portion of the lowerend of the casing midway between the ends of the groove or notch 14.When the locking pin is in its normal raised position with its obliquegroove 19 registering with the slot 18 in the casing, the upper hingemay be assembled automatically by forcibly engaging said groove with thelug 9 whereby said locking pin will be withdrawn against the action ofthe spring as said lug rides up said groove and snaps into place in itssocket. It will be understood, of course, that the conical lug of thelower hinge is seated in its socket before the upper hinge is assembledin the manner just described.

lVhile we have shown the socket for the lug 9 formed partially in thelocking pin and partially in the casing, it will be understood that saidsocket may be formed wholly in one or the other of said parts withoutsacrificing the advantages of my invention. The right is reserved tomake such further changes in the preferred c011- struction herein shownand described as may fairly fall within the scope of our i11- vention.

e claim:

1. A hinge comprising a member provided with a lug, and a supplementalmem ber having a socket for said lug and carrying a casing provided witha slot in its end, a spring-pressed locking pin mounted in said casingbetween said slot and socket and provided with an inclined groove in itsend normally registering with said slot whereby said locking pin may beautomatically withdrawn when said inclined groove therein is forciblyengaged therewith for admitting said lug to its socket.

2. A hinge comprising a member provided with a lug, and a supplementalmember having a socket for said lug and carrying a casing providedwith aslot in its end, a spring-pressed locking pin mounted in said casingbetween said slot and socket and provided with an inclined groove in itsend normally registering with said slot whereby said locking pin may beautomatically withdrawn when said inclined groove therein is forciblyengaged therewith for admitting said lug to its socket, and means tomanually withdraw said locking pin.

3. A hinge comprising a member provided with a lug, and a supplementalmem her having a socket for said lug and carrying a casing provided witha slot in its end, a spring-pressed locking pin mounted in said casingbetween said slot and socket and provided with an inclined groove in itsend normally registering with said slot whereby said locking pin may beautomatically withdrawn when said inclined groove therein is forciblyengaged therewith for admitting said ing to its socket, means tomanually withdraw said locking pin, and means to secure said pin in itswithdrawn position.

4. A hinge comprising a member provided with :1 lug, and a supplementalmember carrying a casing provided in its end with a slot and a partialsocket for said lug, a springpressed locking pin mounted in said casingand provided in its end with an inclined groove, normally registeringwith said slot, and with a partial socket which cooperates with apartial socket of the casing to form a seat for said lug, the uncut partof the end of said pin normally separating said slot from said socket,said spring-pressed locking pin being automatically withdrawn foradmitting the ing to its socket when said inclined groove is forciblyengaged with said lug.

5. A hinge comprising a member provided with a lug, and a supplementalmember having a socket for said lug and carrying a casing provided witha slot in its end, a spring-pressed locking pin mounted in said casingand normally separating said slot from said socket, said casing providedwith a notch having a sloping edge, said pin provided with a lateralprojection normally seated in said not-ch but adapted to be turned outof the same by riding up its sloping edge whereby said pin is withdrawnadmitting the lug to its socket.

6. A hinge comprising a member provided with a lug, and a supplementalmember having a socket for said lug and carrying a casing provided witha slot in its end, a spring-pressed locking pin mounted in said casingand normally separating said slot from said socket, said pin projectingbeyond the other end of the casing, the latter provided with atransverse groove inthat end having sloping edges, oppositely extendinglateral projections on the end of said pin and normally engaging saidgroove, said projections adapted to be turned out of said groove byriding up its sloping edges whereby said lug is admitted to its socket.

In testimony whereof, we afliX our signatures, in presence of twowitnesses.

CALVIN KEITH. GEORGE F. LISTER. JOHN M. EDMONDSON. lVit-nesses BLANOI-IEW'nsr, T. B. JARVIS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

